i am buying hp lptop in which window 8 is preinstalled but because of internet i installed window 7 in that .
but now i wants to install window8 how can i do it
please guide me
All Windows 8/8.1 computers come with a restore partition. You should be able to reinstall Win 8 from that.
If you blew away the restore partition, or you want to set up the computer a different way than the factory default, you can still create a Windows 8/8.1 recovery flash drive by using your Windows key and downloading the 4-8 GB recovery image from Microsoft.
Instructions for finding your key and creating recovery image:
http/dellwindowsreinstallationguide.com/download-microsoft-windows-and-office/download-microsoft-windows/download-windows-8-1-retail-and-oem-iso/
I would suggest you to make new partition and install windows 8 there for a dual boot. This way you will have both Win 7 and Win8
Just put the windows cd in and restart pc, when prompted choose the new partition and install it there
All Windows 8/8.1 computers come with a restore partition. You should be able to reinstall Win 8 from that.
If you blew away the restore partition, or you want to set up the computer a different way than the factory default, you can still create a Windows 8/8.1 recovery flash drive by using your Windows key and downloading the 4-8 GB recovery image from Microsoft.
Instructions for finding your key and creating recovery image:
http/dellwindowsreinstallationguide.com/download-microsoft-windows-and-office/download-microsoft-windows/download-windows-8-1-retail-and-oem-iso/
If you did not format the HP recovery partition, you can use that to restore the Windows 8 factory install. Otherwise you will need Windows 8 OEM installation media.